Auxiliary air inlet and mixing device for motor vehicles



Nov. 8, 1927.

- Y.-D. M DONALD 'AUXILIARY AIR INLET AND MIXING DEVICE FOR MOTQR VEHICLES Filed July 19, 1926 Patented Nov. 8, 192?.

airs

YSABELLA-ID. menonann, or rosette-anus;-eamronnia; 8

AUXILIARY Ara INLET/Ann anxrns. roe: Moron vitamins Application filed my 19, a. serial no. 1 253,533.. v

iliary air inlet and mixing device, for motor I vehicles and aims to provide a device of this nature whereby a gasoline motor anto1nati cally takes in auxiliary air for the purpose of thoroughly shattering all large'particlcs of fuel supplied from thelcarbureter tothe intake manifold of the engine, ma, convert;

. crank case oil.

The advantages obtained from the device is that it set-sup the eiiiciencyof' the motor whereby resulting in a smoother running motor, giving more power and speed without increasing the cost of operation.

This device is equipped with a specially designed ball valve which points directly upwardly. There are preferably a plurality of these valves for controlling them perfectly,

and they do not move until the engine has acquired a certain speed that will remain closed while the motor is being started.

lVhen the motor starts, the suction of the cylinders lifts these balls and permits the air to be drawn in forcibly. It strikes the'mixture as it is passing thru the intakemani fold and successively shatters all large particles of fuel converting into a highly explosive dry gas which readily ignites. v Another important object of the invention is to provide a device of this nature which possesses an exceedingly simple construction that may be manufactured at a low cost, one which is thoroughly efficient and reliable in use, and otherwise well adapted to the pur: pose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing: I

Figure 1 is a side elevation of the device embodying the features of my invention, showing the same associated with the intake manifold of an engine.

Fig. 2 is a section taken substantially on the line 2-2 of Fig. 1, and

Fig. 3 is an elevation of another embodiment of the invention.

Referring to Figs. 1 and 2 of the drawing, 1 denotes a carbureter and 2 an outlet with relatively small air inlet openings 15 pipe thcrefrom-formed with a flange? at itsfree terminus, Intake manifold of the engine is indicated at 1- and which has that cndfopposi'ng the 'freeterminus of'the' outlet P113612, provided w th a flange ,5 0f the same theflanges 31 andfi, as wellas secured to said. flanges by hold fa-stdevices 6, only one of h is shown, is a ,V pQrizin.g attachment."

in accordance with this invention, and which is terA. a

v The auxiliary air inlet and mixing device orattaclirnent comprises a' body portion 8 in the form of a plate 'of substantial thick- 'ness and which conforms in contourto the flanges 3 and-5. The body portion 8 gradually decreases in width fromits transverse center toward each end, and each of its ends is slot-ted. as at 9, for the passage of hold fast devices 6, these latter being arrangedin each side of the pipe 2 and intake manifold 4. The hold fast devices 6 are provided 4 the pipe'2 and intake manifold 4 and pref- 'erably the wall of the opening 10 acts asja continuation of the inner face of the pipe. 2 and the intake manifold 4; v 8 is formed on its lower edge with three cylindrical extensions having bores continued through the body 8 to communicate with the opening 10. These cylindrical extensions o'r nipples 12 are externally threaded for receiving caps 14 which are provided normally closed by ball valves 16.

The center nipple 12 has its axis and bore arranged vertically, and the axes and bores of the other two nipples are arranged 0bliquely thereto. Straight relatively short tube 17 has one end threadedly engaged in the bore of the central nipple 12 and tubes '18 are threadedly engaged with the other two bores of the nipples. The inner ends of the tubes 18 are curved inwardly toward each other to terminate in spaced, relation. The tube 17 terminates below the space between the terminals of the tubes 18. The

' contour asthe flange 3,. Interposed between" refitted t gen ally b'y' lie whens le a The body 2 ion arrangement of these tubes 17 and 18 is an imporant feature of this invention, as it insures the effective and eflicient breaking up of the particle of ga In Fig. 3, Ilhave shown another embodiment of .the invention wherein the intake manifold 4 is tapped by a pipe 19 communi-- eating as at 20with a straight tube-21 and a pair of curved tubes 22. Cylinders 23 are formed on the lower ends of the tubes 21 and I ,22 and have caps 14 associated therewith and similarly constructed Withcaps .14.

" Itis' thought that the construction, operation, superior efliciency, of my invention,

' Will now be clearly understood by those skilled in this artwithout a more detailed description thereof. The present embodiment of the Invention has been disclosed 1n detail merely by Way of example since'i'n actual practice it a tains thefeatures of ad vantage enumerated as desirable in the statement of the'invention and the above description. 'Numerous changes in the details of construction, and in the combination and arrangement of parts may be resorted to Without'departing from the 'spirit or scope of the invention'as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, What I claim as new is p q I An auxiliary air inlet and mixing device comprising a plate having an opening adapted to communicate with the intake manifold of an engine and further provided with a the center tube extending between the outer tubes and terminating short of the axis of the co-aXial alinement of the curved ends,

In testimony whereof I afiix my signature.

YSABELLA D. MCDONALD. 

